There are many different avenues you could take. If you are interested in substance abuse counseling as a social worker, here is the licensing information for New Jersey:

http://www.njconsumeraffairs.gov/social/swlic.htm

Career Information from the Occupational Outlook Handbook:
http://www.bls.gov/oco/ocos060.htm

You might try researching related occupational titles for alternative education and training.